Assimilation is the process of taking on the language, habits, values, or behaviors of a new culture, group, or system, often to the point that a person or thing starts to blend in with its surroundings. People hear this word most often in conversations about immigration, but it also shows up in psychology, biology, and even linguistics. Each field uses the term a little differently, yet the core idea stays the same: something (or someone) absorbs new traits and becomes more like the group or system around it.
This guide breaks down what assimilation means, the different types you might come across, and how it plays out in real life. By the end, you will understand not just the dictionary definition but also why the topic matters so much in schools, workplaces, and communities across the country.
What Does Assimilation Mean?
At its simplest, assimilation means becoming similar to something else by absorbing its traits. The word comes from the Latin term assimilare, which means “to make similar.” Merriam-Webster defines it as the process of adapting or adjusting to the culture of a group, while the Cambridge Dictionary describes it as the process of becoming, or making somebody or something become, part of a country, society, or group.
Sociologists usually study assimilation in the context of immigration and ethnic groups. When a family moves to a new country, they often begin to adopt local customs, learn the dominant language, and adjust their daily habits to fit in with the wider community. Over time, and often across generations, many of the traits from their country of origin fade into the background while the traits of the new culture become more central to daily life.
That said, assimilation is not limited to immigration. Psychologists, biologists, and linguists all use the word to describe similar patterns of change, just in different settings. Understanding these related meanings gives a fuller picture of why the concept shows up in so many fields.
The Different Types of Assimilation
Cultural and Social Assimilation
This is the meaning most people think of first. Cultural assimilation happens when a person or group adopts the customs, language, food, dress, and social norms of a larger or more dominant culture. It often occurs among immigrants, refugees, and minority groups as they settle into a new country or community.
Sociologist Milton Gordon outlined this process in his influential 1964 book, Assimilation in American Life. He described several stages a group might move through, including learning the new language and customs, forming close social ties with the majority group, intermarrying with members of that group, and eventually adopting a shared sense of identity with the broader society. Gordon’s framework is still widely referenced in sociology courses today because it breaks a broad idea into clear, observable steps.
Psychological Assimilation
In psychology, the term takes on a different but related meaning. Swiss psychologist Jean Piaget used assimilation to describe how people learn. According to Piaget’s theory of cognitive development, assimilation happens when a person takes in new information and fits it into an existing mental framework, called a schema, without changing that framework very much.
For example, a toddler who already knows what a dog looks like might see a cat for the first time and call it a dog too, because the cat fits loosely into the existing “four legged animal” schema. Piaget paired assimilation with a second process called accommodation, which happens when a person has to adjust or update their mental framework because new information does not fit at all. Together, these two processes explain how children, and adults, build and refine their understanding of the world.
Biological Assimilation
Biology and nutrition science use the word in yet another way. Here, assimilation refers to how the body absorbs nutrients from food and turns them into usable energy or new tissue. After digestion breaks food down into smaller molecules, the body assimilates those nutrients into the bloodstream, where they get carried to cells throughout the body.
Plants show a related process called carbon assimilation, which happens during photosynthesis. Plants take carbon dioxide from the air and convert it into organic compounds they can use to grow. In both cases, biological assimilation describes how a living thing absorbs outside material and makes it part of its own structure.
Linguistic Assimilation
Linguists use assimilation to describe two related patterns. The first is a sound change within a word, where one sound becomes more similar to a nearby sound to make pronunciation easier. A common example is how many English speakers say “imput” instead of “input,” because the “n” sound shifts to match the “m” sound that follows it.
The second use describes how immigrant families gradually shift from speaking their heritage language to speaking the dominant language of their new country. Research on language shift, including studies by linguist Joshua Fishman, often points to a three generation pattern in the United States: the first generation speaks mostly their native language, the second generation grows up bilingual, and the third generation often speaks mainly English, with only limited knowledge of the family’s original language.
How Cultural Assimilation Happens Over Time
Cultural assimilation rarely happens overnight. It tends to unfold gradually, often across multiple generations within a family. A common pattern looks something like this:
The first generation arrives in a new country and focuses on survival: finding work, learning basic language skills, and meeting daily needs. They often keep close ties to their home culture and community.
The second generation, usually born or raised from a young age in the new country, grows up moving between two worlds. They may speak the family’s native language at home and the new country’s dominant language at school, adopt some local customs while keeping others from their family background, and build friendships across different cultural groups.
The third generation and beyond often feels more fully part of the new country’s culture. Many people at this stage speak mainly the dominant language, follow local customs and holidays, and may know only a little about their family’s original culture unless relatives actively pass it down.
This pattern is not universal or automatic. Family choices, community support, discrimination, and access to resources like education and stable jobs all shape how quickly, or how completely, assimilation takes place.
Everyday Examples of Assimilation
Seeing real examples often makes an abstract idea much clearer. Here are some situations where assimilation shows up in daily life.
Language use. A child of immigrant parents grows up speaking English at school and with friends, even though their parents mainly speak another language at home. Over time, English becomes the child’s primary or even only language.
Food and diet. A family that moved to the United States decades ago now eats mostly American style meals during the week, saving traditional dishes from their home country for special occasions or holidays.
Names. Some immigrants shorten or change their names to versions that are easier for English speakers to pronounce, or they give their children names that are common in their new country rather than names from their heritage.
Dress and appearance. Someone who grew up wearing traditional clothing in their home country may switch to more common Western style clothing for work or school, saving traditional outfits for cultural or religious events.
Holidays and traditions. A family begins celebrating holidays like Thanksgiving or Independence Day alongside, or sometimes instead of, holidays tied to their original culture.
Workplace behavior. New employees, whether immigrants or people simply new to an industry, often adjust their communication style, working hours, and even sense of humor to match workplace norms.
Marriage and social circles. As Gordon’s framework suggests, forming close friendships or marrying someone outside one’s original ethnic or cultural group is often one of the clearest signs that deeper assimilation has taken place.
These examples show that assimilation touches nearly every part of daily life, from the language people speak to the food on their table.
Assimilation Versus Integration
People often use assimilation and integration as if they mean the same thing, but sociologists draw a real distinction between them.
Assimilation generally describes a process where a person or group takes on the dominant culture’s traits, often replacing or downplaying their original cultural identity. The direction of change points mainly one way: toward the majority culture.
Integration, on the other hand, describes a process where a person or group becomes an active part of a new society while still keeping meaningful parts of their original culture and identity. Someone who is well integrated might speak the local language fluently and hold a steady job while also celebrating their heritage’s holidays, speaking their native language at home, and staying connected to their original community.
Many modern sociologists and policymakers favor the integration model, sometimes called the “salad bowl” approach, because it allows diversity to remain visible within a shared society. This contrasts with the older “melting pot” idea, which leaned more heavily on assimilation and the expectation that newcomers would blend fully into the existing culture.
Why Assimilation Matters
Assimilation carries both benefits and real costs, and understanding both sides gives a fuller picture of why the topic sparks so much discussion.
On the benefit side, assimilation can help newcomers find jobs more easily, build social connections, and access services like healthcare and education with fewer language or cultural barriers. It can also reduce social friction and support a shared sense of national identity, which some researchers link to stronger civic participation and social trust.
On the cost side, assimilation can lead to a loss of heritage language, traditions, and family history, especially by the third generation. Some individuals and communities feel pressure to assimilate in order to avoid discrimination, which raises questions about whether the process is truly a free choice or something closer to a survival strategy. Historical examples, such as government policies that forced Indigenous children in the United States and Canada into boarding schools designed to strip away their native languages and customs, show how assimilation can be imposed rather than chosen, often with lasting harm.
Because of these tradeoffs, many educators, policymakers, and community leaders now focus on approaches that support integration rather than full assimilation, aiming to help people join a new society successfully while still preserving what makes their heritage meaningful.
Conclusion
Assimilation describes the process of becoming more like the culture, group, or system around you, whether that shows up in an immigrant family adjusting to a new country, a toddler fitting a new animal into an existing mental category, or the body turning food into usable energy. While the word carries slightly different meanings across sociology, psychology, biology, and linguistics, the underlying pattern stays consistent: something absorbs outside influence and becomes part of a larger whole.
Understanding assimilation, and how it differs from related ideas like integration, helps explain everyday patterns seen in language use, food, family traditions, and workplace behavior. It also opens up an honest conversation about the benefits assimilation can bring, along with the real costs it can carry for people balancing their heritage with life in a new community.
Frequently Asked Questions
What is a simple definition of assimilation?
Assimilation is the process of becoming similar to a new culture, group, or system by adopting its language, customs, or behaviors, often while letting go of some original traits.
What is an example of assimilation in real life?
A common example is a child of immigrant parents who grows up speaking mainly English and following American customs, even though their parents kept closer ties to their home country’s language and traditions.
What is the difference between assimilation and integration?
Assimilation usually means fully adopting a new culture and downplaying the original one, while integration means joining a new society while still keeping meaningful parts of one’s original culture and identity.
What is assimilation in psychology?
In psychology, assimilation is part of Jean Piaget’s theory of learning. It describes how people fit new information into an existing mental framework, or schema, without changing that framework much.
What is assimilation in biology?
In biology, assimilation refers to how the body absorbs nutrients from digested food and uses them for energy, growth, and tissue repair. Plants show a similar process during photosynthesis.
